Shep Doeleman, scientist and Assistant Director of the Haystack Observatory at MIT, describes an effort to link radio dishes around the world to form an Earth-sized virtual telescope that will make the first images of the supermassive black hole at the center of the Milky Way.

Museum scientists will be on hand on Saturday, May 9 to identify objects from visitors’ natural history collections. Not sure what to bring? Here are some of the items that Museum staff hope to get identified.